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Showing results for tags 'tezakia'.
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From the album: Harding Sandstone
Chondrichthyan? denticles Tezakia hardingensis Harding Sandstone, Canyon City, CO, USA These are possible Ordovician Chrondrichthyan (class of cartilaginous fish including sharks) denticles, if true, these would be the earliest known. Described by Andreev et al. (2015) and Sansom et al. (1996) ^Andreev et al. (2015) -
We have recently picked up some rather interesting micro shark teeth from the Paleozoic. Originally this was our way to get some older shark fossils to show students but I am actually pretty interested in continuing to collect micros from this period. First up, the oldest Chondrichthyes fossils we have and as I understand it, the second oldest yet found. Denticles Upper Ordovician Harding Sandstone Colorado I read that these had been given a name, Tezakia. Not sure if that is still valid or if these denticles match those described.
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